21270273

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{2473}}^1$

素因数の和:2584

約数の個数: 16

約数和(自身を含む): 29450496

約数和(自身を除く): 8180223

約数列:

[1, 3, 47, 61, 141, 183, 2473, 2867, 7419, 8601, 116231, 150853, 348693, 452559, 7090091, 21270273]

約数ペア:

[(1, 21270273), (3, 7090091), (47, 452559), (61, 348693), (141, 150853), (183, 116231), (2473, 8601), (2867, 7419)]